Juniper MX480 Hardware Manual page 336

MX480 Universal Routing Platform Hardware Guide
336
TIP: To prevent traffic loss during the upgrade process, we recommend that
you operate the line cards at 50% line rate. This 50% limit must be
maintained per PFE on each line card.
To prepare the MX480 router for the Enhanced MX Switch Control Board (SCBE-MX)
upgrade:
Verify that the system runs Junos OS Release 11.4 or later by issuing the
1.
command on the master router.
user@host> show version
Model: mx480
Junos Base OS Software Suite [11.4-20110530];
NOTE: The MX SCBE-MX is supported only in Junos OS Release 11.4 or
later.
The latest software ensures a healthy system—that is, Routing Engines, control boards,
and FPCs—before the upgrade.
Verify that SCB-MX boards are installed:
2.
user@host> show chassis hardware
Item Version Part Number Serial Number
CB0 REV 07 710-021523
CB1 REV 07 710-021523
SCB-MX details are displayed as above, along with other hardware components. The
MX480 router has only two SCB-MXs and each SCB-MX has four fabric planes.
Establish console connections to both Routing Engines. You can use a telnet session
3.
to connect to the router console by issuing the
example, if the router name is juniper, you can connect to RE0 and RE1 consoles by
issuing the telnet juniper-con
Ensure that graceful switchover (GRES), commit synchronize (required for nonstop
4.
routing), and nonstop routing (NSR) are enabled or configured by running the
chassis redundancy graceful-switchover, set system commit synchronize, set
routing-options nonstop-routing
NOTE: These commands are mandatory for this upgrade and may be
removed, if desired, after the upgrade.
Description
ABBC8281 MX SCB
ABBC8323 MX SCB
<router name>-con
and telnet juniper1-con commands.
commands.
Copyright © 2019, Juniper Networks, Inc.
show version
command. For
set